1DLERROR(3)                 Linux Programmer's Manual                DLERROR(3)
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NAME

6       dlerror - obtain error diagnostic for functions in the dlopen API
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SYNOPSIS

9       #include <dlfcn.h>
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11       char *dlerror(void);
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13       Link with -ldl.
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DESCRIPTION

16       The dlerror() function returns a human-readable, null-terminated string
17       describing the most recent error that occurred from a call  to  one  of
18       the  functions in the dlopen API since the last call to dlerror().  The
19       returned string does not include a trailing newline.
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21       dlerror() returns NULL if no errors have occurred since  initialization
22       or since it was last called.
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VERSIONS

25       dlerror() is present in glibc 2.0 and later.
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ATTRIBUTES

28       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
29       tributes(7).
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31       ┌──────────┬───────────────┬─────────┐
32       │Interface │ Attribute     │ Value   │
33       ├──────────┼───────────────┼─────────┤
34       │dlerror() │ Thread safety │ MT-Safe │
35       └──────────┴───────────────┴─────────┘

CONFORMING TO

37       POSIX.1-2001.
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NOTES

40       The message returned by dlerror() may reside in a statically  allocated
41       buffer that is overwritten by subsequent dlerror() calls.
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43   History
44       This function is part of the dlopen API, derived from SunOS.
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EXAMPLES

47       See dlopen(3).
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SEE ALSO

50       dladdr(3), dlinfo(3), dlopen(3), dlsym(3)
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COLOPHON

53       This  page  is  part of release 5.10 of the Linux man-pages project.  A
54       description of the project, information about reporting bugs,  and  the
55       latest     version     of     this    page,    can    be    found    at
56       https://www.kernel.org/doc/man-pages/.
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60Linux                             2020-06-09                        DLERROR(3)
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